Iran’s nuclear weapons program and the JCPOA are very much part of the reason to create this blog, as regular readers know or if you select the tabs on the blog to read about its history.  Here is a story at the start of the Biden Administration laying out some of the difficulties of treating with Iran through the JCPOA—the authors say “ Reviving the JCPOA will ensure either the emergence of a nuclear Iran or a desperate war to stop it.”  See “The Case Against the Iran Deal,” Michael Oren and Yossi Klein Halevi, The Atlantic, January 21, 2021.